Figure A-l. Artist1 s concept of a 5000 MW SPS. Given the results summarized in Figure A-2, the conclusions of the first study phase are that, given appropriate technological advances and continued increases in the real cost of generating electrical power by terrestrial systems, SPS might become economically viable by the mid-to-late 1990's and that it is unlikely that the power relay satellite will become economically viable at any time over the study period — through 2025. The second study phase, conducted during the period February 1 to June 30, 1976, examined in greater depth the technical and economic aspects of SPS with a focus on the current configuration 5000 MW system. In this phase of the study, the following efforts were requested:
RkJQdWJsaXNoZXIy MTU5NjU0Mg==